public void ConfigurationLayerWithoutManagerTests()
{
int countCollectionChangedEvent = 0;
int countPropertyChangedEvent = 0;
ConfigurationLayer layer = new ConfigurationLayer();
layer.Items.CollectionChanged += (s, e) => countCollectionChangedEvent++;
//initialization tests
Assert.That(layer.Items.Count, Is.EqualTo(0));
Assert.Throws <IndexOutOfRangeException>(() => { ConfigurationItem lambdaItem = layer.Items[42]; });
Assert.That(layer.Items["schmurtz"], Is.Null);
Assert.That(layer.Items.Contains("schmurtz"), Is.False);
//actions without items
ConfigurationResult result = layer.Items.Remove("schmurtz");
Assert.That(result == false); //use a implicit cast
Assert.That(result.IsSuccessful, Is.False);
Assert.That(result.FailureCauses.Count, Is.EqualTo(1));
Assert.That(result.FailureCauses.Contains("Item not found"), Is.True);
Assert.That(countCollectionChangedEvent, Is.EqualTo(0));
//exception in add fonction
Assert.Throws <ArgumentException>(() => layer.Items.Add(null, ConfigurationStatus.Optional));
Assert.Throws <ArgumentException>(() => layer.Items.Add("", ConfigurationStatus.Optional));
//add function tests
result = layer.Items.Add("schmurtz", ConfigurationStatus.Optional);
Assert.That(result == true);
Assert.That(result.IsSuccessful, Is.True);
Assert.That(result.FailureCauses, Is.Not.Null);
Assert.That(result.FailureCauses.Count, Is.EqualTo(0));
Assert.That(countCollectionChangedEvent, Is.EqualTo(1));
Assert.That(layer.Items.Count, Is.EqualTo(1));
Assert.That(layer.Items["schmurtz"], Is.Not.Null);
Assert.DoesNotThrow(() => { ConfigurationItem lambdaItem = layer.Items[0]; });
Assert.That(layer.Items["schmurtz"].Layer, Is.EqualTo(layer));
Assert.That(layer.Items["schmurtz"].Layer.Items["schmurtz"], Is.Not.Null);
Assert.That(layer.Items["schmurtz"].ServiceOrPluginId, Is.EqualTo("schmurtz"));
Assert.That(layer.Items["schmurtz"].Status, Is.EqualTo(ConfigurationStatus.Optional));
Assert.That(layer.Items["schmurtz"].StatusReason, Is.EqualTo(""));
//basic tests with item reference
ConfigurationItem item = layer.Items["schmurtz"];
item.PropertyChanged += (s, e) => countPropertyChangedEvent++;
item.StatusReason = null;
Assert.That(item.StatusReason, Is.EqualTo(""));
Assert.That(countPropertyChangedEvent, Is.EqualTo(1));
Assert.DoesNotThrow(() => item.StatusReason = "schmurtz");
Assert.That(countPropertyChangedEvent, Is.EqualTo(2));
Assert.DoesNotThrow(() => item.StatusReason = "");
Assert.That(countPropertyChangedEvent, Is.EqualTo(3));
//setstatus tests
Assert.That(item.SetStatus(ConfigurationStatus.Disable).IsSuccessful, Is.True);
Assert.That(item.Status, Is.EqualTo(ConfigurationStatus.Disable));
Assert.That(item.SetStatus(ConfigurationStatus.Optional).IsSuccessful, Is.True);
Assert.That(item.Status, Is.EqualTo(ConfigurationStatus.Optional));
Assert.That(item.SetStatus(ConfigurationStatus.Runnable).IsSuccessful, Is.True);
Assert.That(item.Status, Is.EqualTo(ConfigurationStatus.Runnable));
Assert.That(item.SetStatus(ConfigurationStatus.Running).IsSuccessful, Is.True);
Assert.That(item.Status, Is.EqualTo(ConfigurationStatus.Running));
Assert.That(countPropertyChangedEvent, Is.EqualTo(7));
Assert.DoesNotThrow(() => item.SetStatus(ConfigurationStatus.Optional, null));
Assert.That(item.Status, Is.EqualTo(ConfigurationStatus.Optional));
Assert.That(item.StatusReason, Is.EqualTo(""));
Assert.That(countPropertyChangedEvent, Is.EqualTo(9));
//add function tests when the item already exist
result = layer.Items.Add("schmurtz", ConfigurationStatus.Disable);
Assert.That(result == true);
Assert.That(layer.Items.Count, Is.EqualTo(1));
Assert.That(layer.Items["schmurtz"].Status, Is.EqualTo(ConfigurationStatus.Disable));
Assert.That(item.Status, Is.EqualTo(ConfigurationStatus.Disable));
result = layer.Items.Add("schmurtz", ConfigurationStatus.Optional);
Assert.That(result == true);
Assert.That(layer.Items.Count, Is.EqualTo(1));
Assert.That(layer.Items["schmurtz"].Status, Is.EqualTo(ConfigurationStatus.Optional));
Assert.That(item.Status, Is.EqualTo(ConfigurationStatus.Optional));
result = layer.Items.Add("schmurtz", ConfigurationStatus.Runnable);
Assert.That(result == true);
Assert.That(layer.Items.Count, Is.EqualTo(1));
Assert.That(layer.Items["schmurtz"].Status, Is.EqualTo(ConfigurationStatus.Runnable));
Assert.That(item.Status, Is.EqualTo(ConfigurationStatus.Runnable));
result = layer.Items.Add("schmurtz", ConfigurationStatus.Running);
Assert.That(result == true);
Assert.That(layer.Items.Count, Is.EqualTo(1));
Assert.That(layer.Items["schmurtz"].Status, Is.EqualTo(ConfigurationStatus.Running));
Assert.That(item.Status, Is.EqualTo(ConfigurationStatus.Running));
Assert.That(countPropertyChangedEvent, Is.EqualTo(13));
//OnRemoved tests
layer.Items.Remove("schmurtz");
Assert.That(result == true);
Assert.That(result.IsSuccessful, Is.True);
Assert.That(result.FailureCauses, Is.Not.Null);
Assert.That(result.FailureCauses.Count, Is.EqualTo(0));
Assert.That(countCollectionChangedEvent, Is.EqualTo(2));
Assert.That(layer.Items["schmurtz"], Is.Null);
Assert.Throws <IndexOutOfRangeException>(() => { ConfigurationItem lambdaItem = layer.Items[0]; });
//tests with item reference when item is removed
Assert.That(item.Layer, Is.EqualTo(null));
Assert.That(item.ServiceOrPluginId, Is.EqualTo("schmurtz"));
Assert.That(item.Status, Is.EqualTo(ConfigurationStatus.Optional));
Assert.That(item.StatusReason, Is.EqualTo(null));
Assert.Throws <InvalidOperationException>(() => item.StatusReason = "schmurtz");
Assert.Throws <InvalidOperationException>(() => item.SetStatus(ConfigurationStatus.Runnable));
//tests with multiple add
result = layer.Items.Add("schmurtz2", ConfigurationStatus.Optional, "schmurtz?");
Assert.That(result == true);
result = layer.Items.Add("schmurtz1", ConfigurationStatus.Disable, "schmurtz?");
Assert.That(result == true);
Assert.That(layer.Items.Count, Is.EqualTo(2));
//sort tests
ConfigurationItem schmurtz1 = layer.Items["schmurtz1"];
ConfigurationItem schmurtz2 = layer.Items["schmurtz2"];
Assert.That(schmurtz1, Is.EqualTo(layer.Items[0]));
Assert.That(schmurtz2, Is.EqualTo(layer.Items[1]));
Assert.That(schmurtz1.StatusReason, Is.EqualTo("schmurtz?"));
Assert.That(schmurtz2.StatusReason, Is.EqualTo("schmurtz?"));
result = layer.Items.Add("schmurtz0", ConfigurationStatus.Running);
ConfigurationItem schmurtz0 = layer.Items["schmurtz0"];
Assert.That(schmurtz0, Is.EqualTo(layer.Items[0]));
Assert.That(schmurtz1, Is.EqualTo(layer.Items[1]));
Assert.That(schmurtz2, Is.EqualTo(layer.Items[2]));
}